## attribute
### transferIndex
>use in list rendering, if your component has one menu,you may not need it.

### contextMenuData

#### contextMenuData.menuName

>the menu name

#### contextMenuData.axis

>Positional coordinates displayed on menus,the x is clientX and y is clientY

#### contextMenuData.menulists

>menu options. the "btnName" is the menu name and "icoName" is the icon name,can config or not.and "children" to  set its submenu."fnHandler" is the menu handler.

### Be careful

Supporting Infinite Submenus,but there's no that the style will fit perfectly.